撑杆式预应力钢压杆屈曲形态函数研究  

BUCKLING MODE FUNCTION OF STAYED STEEL COLUMN

作　　者：唐柏鉴[1] 朱晶晶[1] 

机构地区：[1]江苏科技大学土木工程系,镇江212003

出　　处：《力学与实践》2010年第4期51-57,共7页Mechanics in Engineering

基　　金：国家自然科学基金(50948035);江苏省自然科学基金(BK2009723)资助项目

摘　　要：基于撑杆式预应力钢压杆正对称和反对称两个基本屈曲模态,给出了相应的屈曲形态函数,通过3个典型算例并变化关键参数着重研究了模拟曲线项数,同时给出了不对称屈曲的形态函数.研究表明,取形态函数模拟项数为预应力钢压杆节间数,可以很好满足工程精度.The mode function is the key for obtaining the critical load of a stayed steel column.Based on two basic modes,symmetric and anti-symmetric,the basic buckling mode functions are obtained,and three examples are considered for the performance of simulation curves by varying their key parameters.At last, the buckling mode function for asymmetric buckling is obtained.The results indicate that the engineering requirements can be met when the number of simulation curves is equal to the total section number of the stayed steel column.

关 键 词：预应力钢压杆 形态函数 临界荷载 不对称屈曲 

分 类 号：TU394[建筑科学—结构工程]